1 PREFIX （用于词首，尤用于名词）表示“空中的”，“空气中的” aero- is used at the beginning of words, especially nouns, that refer to things or activities connected with air or movement through the air. （用于词首，尤用于名词）表示“空中的”，“空气中的”

2 COMB in N-COUNT （与名词结合构成新的名词）表示“与飞机相关的” aero- combines with nouns to form nouns relating to aeroplanes. （与名词结合构成新的名词）表示“与飞机相关的”